These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 30 insertions, 24 deletions

diff --git a/kernel/drivers/gpio/gpio-vf610.c b/kernel/drivers/gpio/gpio-vf610.c
index 7bd9f209f..87b950cec 100644
--- a/kernel/drivers/gpio/gpio-vf610.c
+++ b/kernel/drivers/gpio/gpio-vf610.c
@@ -60,6 +60,13 @@ struct vf610_gpio_port {
 #define PORT_INT_EITHER_EDGE	0xb
 #define PORT_INT_LOGIC_ONE	0xc
 
+static struct irq_chip vf610_gpio_irq_chip;
+
+static struct vf610_gpio_port *to_vf610_gp(struct gpio_chip *gc)
+{
+	return container_of(gc, struct vf610_gpio_port, gc);
+}
+
 static const struct of_device_id vf610_gpio_dt_ids[] = {
 	{ .compatible = "fsl,vf610-gpio" },
 	{ /* sentinel */ }
@@ -75,28 +82,16 @@ static inline u32 vf610_gpio_readl(void __iomem *reg)
 	return readl_relaxed(reg);
 }
 
-static int vf610_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
-	return pinctrl_request_gpio(chip->base + offset);
-}
-
-static void vf610_gpio_free(struct gpio_chip *chip, unsigned offset)
-{
-	pinctrl_free_gpio(chip->base + offset);
-}
-
 static int vf610_gpio_get(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct vf610_gpio_port *port =
-		container_of(gc, struct vf610_gpio_port, gc);
+	struct vf610_gpio_port *port = to_vf610_gp(gc);
 
 	return !!(vf610_gpio_readl(port->gpio_base + GPIO_PDIR) & BIT(gpio));
 }
 
 static void vf610_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-	struct vf610_gpio_port *port =
-		container_of(gc, struct vf610_gpio_port, gc);
+	struct vf610_gpio_port *port = to_vf610_gp(gc);
 	unsigned long mask = BIT(gpio);
 
 	if (val)
@@ -118,9 +113,10 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
 	return pinctrl_gpio_direction_output(chip->base + gpio);
 }
 
-static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void vf610_gpio_irq_handler(struct irq_desc *desc)
 {
-	struct vf610_gpio_port *port = irq_get_handler_data(irq);
+	struct vf610_gpio_port *port =
+		to_vf610_gp(irq_desc_get_handler_data(desc));
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int pin;
 	unsigned long irq_isfr;
@@ -140,7 +136,8 @@ static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 
 static void vf610_gpio_irq_ack(struct irq_data *d)
 {
-	struct vf610_gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct vf610_gpio_port *port =
+		to_vf610_gp(irq_data_get_irq_chip_data(d));
 	int gpio = d->hwirq;
 
 	vf610_gpio_writel(BIT(gpio), port->base + PORT_ISFR);
@@ -148,7 +145,8 @@ static void vf610_gpio_irq_ack(struct irq_data *d)
 
 static int vf610_gpio_irq_set_type(struct irq_data *d, u32 type)
 {
-	struct vf610_gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct vf610_gpio_port *port =
+		to_vf610_gp(irq_data_get_irq_chip_data(d));
 	u8 irqc;
 
 	switch (type) {
@@ -173,12 +171,18 @@ static int vf610_gpio_irq_set_type(struct irq_data *d, u32 type)
 
 	port->irqc[d->hwirq] = irqc;
 
+	if (type & IRQ_TYPE_LEVEL_MASK)
+		irq_set_handler_locked(d, handle_level_irq);
+	else
+		irq_set_handler_locked(d, handle_edge_irq);
+
 	return 0;
 }
 
 static void vf610_gpio_irq_mask(struct irq_data *d)
 {
-	struct vf610_gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct vf610_gpio_port *port =
+		to_vf610_gp(irq_data_get_irq_chip_data(d));
 	void __iomem *pcr_base = port->base + PORT_PCR(d->hwirq);
 
 	vf610_gpio_writel(0, pcr_base);
@@ -186,7 +190,8 @@ static void vf610_gpio_irq_mask(struct irq_data *d)
 
 static void vf610_gpio_irq_unmask(struct irq_data *d)
 {
-	struct vf610_gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct vf610_gpio_port *port =
+		to_vf610_gp(irq_data_get_irq_chip_data(d));
 	void __iomem *pcr_base = port->base + PORT_PCR(d->hwirq);
 
 	vf610_gpio_writel(port->irqc[d->hwirq] << PORT_PCR_IRQC_OFFSET,
@@ -195,7 +200,8 @@ static void vf610_gpio_irq_unmask(struct irq_data *d)
 
 static int vf610_gpio_irq_set_wake(struct irq_data *d, u32 enable)
 {
-	struct vf610_gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct vf610_gpio_port *port =
+		to_vf610_gp(irq_data_get_irq_chip_data(d));
 
 	if (enable)
 		enable_irq_wake(port->irq);
@@ -248,8 +254,8 @@ static int vf610_gpio_probe(struct platform_device *pdev)
 	gc->ngpio = VF610_GPIO_PER_PORT;
 	gc->base = of_alias_get_id(np, "gpio") * VF610_GPIO_PER_PORT;
 
-	gc->request = vf610_gpio_request;
-	gc->free = vf610_gpio_free;
+	gc->request = gpiochip_generic_request;
+	gc->free = gpiochip_generic_free;
 	gc->direction_input = vf610_gpio_direction_input;
 	gc->get = vf610_gpio_get;
 	gc->direction_output = vf610_gpio_direction_output;
@@ -263,7 +269,7 @@ static int vf610_gpio_probe(struct platform_device *pdev)
 	vf610_gpio_writel(~0, port->base + PORT_ISFR);
 
 	ret = gpiochip_irqchip_add(gc, &vf610_gpio_irq_chip, 0,
-				   handle_simple_irq, IRQ_TYPE_NONE);
+				   handle_edge_irq, IRQ_TYPE_NONE);
 	if (ret) {
 		dev_err(dev, "failed to add irqchip\n");
 		gpiochip_remove(gc);